Grout pump



FIG. 1 is a front elevational view of a grout pump showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a typical end elevational view shown at an enlarged scale as seen from the left-hand end of FIG. 1;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof. 

I claim the ornamental design for a grout pump, as shown. 